schubbert



(No Model.)

' 2 sheets-sheet I.. 'L. G. A. SOHUBBERT.

HYGROSGOPIU STOPPER. 110,532,592.

Patented Jan. 15, 1895..

Sha l 4 g}. JW

L. G, A. SOHUBBERT.

(No Model.) 2 sheets sheet 2;.

HYGROSUOPIG STOPPBR.

in: no, wnuro umu. WASHINGYON c c UNITED STATES PATENT OFFICE.

LUDWIGeUsTAv ADOLF SGHUBBERT, on Bonn, NEAR RENDSBURG, ERMANY.

. VHYGROSCOVPI'C STOPPER.

SPECIFICATION forming part of Letters Patent No. 532,592, dated January. 15, 1895.

Application filed November 16,1892. Serial No. 452,183. (No model.)

To aZZ whom it may concern.-

Be it known that vI, LUDWIG GUsTAv ADOLF SCHUBBERT, a subject of the German Emperor, and a resident of -Hohn, near Rendsburg, Germany, have invented an Improved Hygroscopic Stopper, of which the following is a specification.

This invention relates to a bottle stopper which will absorb and accumulate objectionable moisturefrom the contents of the bottle so that the contents will remain dry.

In the accompanying drawings, Figure 1 is a vertical longitudinal section of my improved bottle stopper; Fig. 2, a cross section on line P, P, Fig. 1, looking down; Fig. 3, a similarsection looking up; Fig. 4, a top view of the stopper; Fig. 5, a vertical section partly in side view of a modification; Fig. 6, a vertical section thereof showing the ducts open; Fig. 7, a cross section on line B, B, Fig. 6,

Fig. 8,,a vertical section with the ducts closed Fig. 9, a cross section on line S, S, Fig. 8;Fig. 10, a vertical section of a further modification; Fig. 11, a cross section on line Q, Q, Fig. 10; Fig. 12, a section similar to Fig. 10, with the plug raised; Fig. 13, a vertical section of a further modification, and Fig. 14 a similar section with the plug raised.

In Figs. 1 to 4 the letter M, represents a bottle or other receptacle into the neck of which is fitted a stopper A. This stopper is hollow to form a chamber B, for the reception of a suitable moisture absorbing material m, such as chloride of calcium, but of course, any other absorbent, either liquid or solid may be substituted. The chamber B is closed by a plug 17, seated within the neck of the stopper A. With the chamber B,there communicates a tube or duct a, opening at its lower end into bottle M, andentering with its upper end a cavity 19*, of plug 1). This cavity may be filled with a packing such as Wadding 'n, to prevent a return of moisture. The moisture ascends from bottle M, through tube a, and packing n, and enters chamber B, to be absorbed by the absorbent m, as will be readily understood.

In Figs. 5 to 9 the central channel a, is replaced bya pair of circumferential channels or ducts to, communicating at their lower end by a perforation d, with bottle M. The plug 1), is provided with two grooves f, placed diametrically opposite each other. When the plug b, is so inserted that the channels a, register with the grooves f, (Fig. 6,) thecontents of the bottle communicate with the lnterior of the stopper; but if the grooves f, are out of line with the channels a, the communication between bottle and interior of stopper is interrupted, so that no absorption takes place,

In Figs. 10 to 12, the tube a, is secured to.

.the plug b, in lieu of being secured to the stopper A. Here the cavity is partlally closed by a perforated diaphragm 11, and the tube a, is attached to this diaphragm and projects through a perforation l, of stopper A.

"In Figs.l3 and 14 the perforated diaphragm i, is omitted and the tube a, is detached from the plug and also from the stopper, so that allthree pieces are separable from each other.

What I claim is- A bottle stopper having a chamber, an absorbent within the chamber, a tube that communicates with the bottle and opens into the interior of thestopper, and with a plug that engages the stopper above the mouth of the tube, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

LUDWIG GUSTAV ADOLF SCHUBBERT.

Witnesses:

CHRISTIAN LUDWIG HEIT, HENNING VoLLnnT. 

